This key ring allows you to twirl your keys like a karambit, allowing you to always have your fidget toy with you! the centre ring is just right for most fingers, feel free to scale up the piece slightly if necessary. I also uploaded 3 main size, you can download try fit file to print only the ring.

Printer: Bambulab A1 Layer height:0.1 First layer Height: 0.1 infill: 15% Raft: No Support: No